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Doubling and Halving Worksheet

Tables & multiplication lesson 14: Doubling and halving · Set 760 · 40 questions
TalentJR

How it works (Double and halve): Find the number ending in 5 and the even number. Double the one ending in 5; halve the even one. Repeat while it helps (25 → 50 → 100), then multiply.

NameDateTime takenScore ___ / 40
  1. 1.65 × 16 =
  2. 2.26 × 65 =
  3. 3.125 × 24 =
  4. 4.12 × 75 =
  5. 5.65 × 24 =
  6. 6.45 × 36 =
  7. 7.12 × 25 =
  8. 8.14 × 15 =
  9. 9.25 × 6 =
  10. 10.8 × 35 =
  11. 11.65 × 6 =
  12. 12.25 × 32 =
  13. 13.65 × 30 =
  14. 14.30 × 55 =
  15. 15.55 × 14 =
  16. 16.15 × 26 =
  17. 17.16 × 35 =
  18. 18.18 × 125 =
  19. 19.15 × 32 =
  20. 20.12 × 75 =
  21. 21.20 × 65 =
  22. 22.55 × 36 =
  23. 23.32 × 55 =
  24. 24.55 × 24 =
  25. 25.30 × 45 =
  26. 26.45 × 16 =
  27. 27.25 × 40 =
  28. 28.12 × 125 =
  29. 29.34 × 45 =
  30. 30.35 × 34 =
  31. 31.25 × 20 =
  32. 32.45 × 12 =
  33. 33.12 × 45 =
  34. 34.38 × 15 =
  35. 35.35 × 14 =
  36. 36.10 × 125 =
  37. 37.36 × 45 =
  38. 38.45 × 14 =
  39. 39.15 × 22 =
  40. 40.75 × 28 =

Answer key

  1. 1040
  2. 1690
  3. 3000
  4. 900
  5. 1560
  6. 1620
  7. 300
  8. 210
  9. 150
  10. 280
  11. 390
  12. 800
  13. 1950
  14. 1650
  15. 770
  16. 390
  17. 560
  18. 2250
  19. 480
  20. 900
  21. 1300
  22. 1980
  23. 1760
  24. 1320
  25. 1350
  26. 720
  27. 1000
  28. 1500
  29. 1530
  30. 1190
  31. 500
  32. 540
  33. 540
  34. 570
  35. 490
  36. 1250
  37. 1620
  38. 630
  39. 330
  40. 2100

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